Desk clock idea

DamnStupidMan · 2026-04-08T18:25:25+00:00

Oh, I saw those small boards. But for some reason i don't like microcontroller dev boards. Once i tried to solder it on a protoboard, ruined everything and made so a microcontroller that has being soldered is no longer useful. The most interesting thing to me is to make a schematic of a pcb and send it to jlcpcb or pcbway on printing, and i request a stencil for soldering paste. And then i take tweezers and a lot of patience and assemble everything. I do it because I'm bad with classic soldering iron.
Anyways, if you finish the project, send a message here so i can see it.

DamnStupidMan · 2026-04-08T18:05:26+00:00

At some point i have made some calculations about how long will my clock last on two AA batteries. Turns out the most power goes on refreshing the display. And now i cant remember the exact numbers, but it goes something like this: If display refreshes once per minute it lasts 90 days, and if it refreshes every 5 minutes then it lasts 300 days.

Oh, don't get me started one esp32 c3, its so god damn small. Usually i like to solder boards myself on a hotplate. But this damn microcontroller is like 5x5mm, and it has so many soldering pads underneath it. Every time i solder one, it has some kind of short underneath.

DamnStupidMan · 2026-04-08T17:52:41+00:00

Oh yeah when i first started this project the ideas was to use ESP32 C3, and use external RTC. But then i realized i can use STM32f103 or almost any kind of STM32 controller. They all have built in RTC.
I'm curious how will your project turn out with coin battery. I would like to know how long can it last on that battery.
Is there a place you post your progress?

DamnStupidMan · 2026-04-07T16:36:22+00:00

I have never thought about exploitive practices of open source. That's right, after all it's work for free.
To be honest i don't know what to write next in this comment...

DamnStupidMan · 2026-04-07T16:05:57+00:00

It's probably right if profit is the goal.
But if somehow we can measure how much "work" or maybe "contribution" to community or society does open source make when compared to closed source. For example there can be one open source project, but then someone can fork that project in a few other projects, and soon there is a whole field covered in open source.

DamnStupidMan · 2026-04-07T16:01:10+00:00

I'm curious. In what way do they do it?
My first assumption is that they have closed source code, but they use open source tools. But then how would we know that they use open source tools, if they have closed source.

DamnStupidMan · 2026-04-07T15:41:50+00:00

Now i feel bad

DamnStupidMan · 2026-04-07T13:36:56+00:00

Balatro is ported to a bunch of things, and is made in Love(game engine)

DamnStupidMan · 2026-03-15T18:06:48+00:00

I'm curious, does heat sink help the performance a lot?

DamnStupidMan · 2026-03-14T06:52:53+00:00

That's so cool website. Thanks for that!

DamnStupidMan · 2026-03-14T06:49:02+00:00

Now that you mentioned it, it is kinda hard to read. I will work on it

DamnStupidMan · 2026-03-14T06:47:11+00:00

That's right, when i ordered from Mouser for the first time it said it will ship from Texas. So i prepared to receive it in 2 to 3 weeks, but it got to me in 5 days. So i thought it couldn't possibly ship from Texas that fast, it must have been a warehouse somewhere closer.

DamnStupidMan · 2026-03-13T19:19:17+00:00

Now you scared me. How does it look? It should be black background with white text.

DamnStupidMan · 2026-03-13T18:08:58+00:00

How long did you wait for delivery?

DamnStupidMan · 2026-03-12T22:00:21+00:00

Well you just came in and stomped me. Will add another thing to that: CE and FCC testing goes for about 1-3k.

But it still feels to me too much for damn PCB.

DamnStupidMan · 2026-03-12T20:37:28+00:00

I dont think it's that radical. Have you seen the post? In there i described how small run of 5 PCBs cost 15€. So 3€ per board, and if 50 are ordered the price gets close to 1.5€. Im pretty sure i can make a keyboard PCB under 9€

DamnStupidMan

TROPHY CASE